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Question: Answered & Verified by Expert
What happens to dissolved oxygen in water during the night?
ChemistryEnvironmental ChemistryNEET
Options:
  • A It increases due to bacterial respiration.
  • B It remains constant.
  • C It decreases due to bacterial respiration.
  • D It increases due to photosynthesis.
Solution:
2661 Upvotes Verified Answer
The correct answer is: It decreases due to bacterial respiration.
During the night, photosynthesis stops, but aquatic plants and microorganisms continue to respire, leading to a reduction in dissolved oxygen in the water.

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